The fuchuan tunnel of double track Lanzhou-urumchi railway is located in yongjing country in gansu province with the total of 10469m. starting from DK39+730 to DK50+379,it has one tube and double line with IV surrounding rock 8705m and V surrounding rock 1944m in the body.Most of the tunnel rock is mud rock, with little sandstone on some parts ,and the ground water is corrosive bedrock fissure water.